Siemens SIRIUS 3SK1 Equipment Manual

8.2.3 Connection data for 3RQ1 terminals
Speci󹪝cation and value
in the case of removable terminals with screw-type terminals
Screwdriver Cross-tip screwdriver
Size: PZ 1x80 (⌀ 4.5 mm)
Torque: 0.6 to 0.8 Nm
Rigid cable
$
A = 10 mm
1 x 0.5 ... 4.0 mm²
2 x 0.5 ... 2.5 mm²
Flexible conductor with end sleeve
$
A = 10 mm
1 x 0.5 ... 4.0 mm²
2 x 0.5 ... 1.5 mm²
Flexible cable
$
Not permissible
AWG 1 x 20 to 12
2 x 20 to 14
8.2.4 Connecting the screw-type terminals
WARNING
Hazardous Voltage
Can Cause Death, Serious Injury, or Property Damage.
Before starting work, therefore, disconnect the system and devices from the power supply.
Tools and materials
• Cross-tip screwdriver size PZ 1 x 80.
• For suitable connection cross-sections of the cables, see the chapter "Connection data for
3SK1 terminals (Page 157)".
Connection
8.2 22.5 mm/17.5 mm devices
SIRIUS 3SK1 Safety Relays and 3RQ1 Positively-Driven Coupling Relays
158 Equipment Manual, 05/2021, A5E02526190021A/RS-AE/005

Siemens SIRIUS 3SK1 Specifications

General

Brand	Siemens
Model	SIRIUS 3SK1
Category	Relays
Language	English